Loans (Details 9) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	$ 1,651,967	$ 1,585,519
Pass [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	1,280,508	1,226,966
Special Mention [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	43,804	37,700
Substandard [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	46,937	55,715
Doubtful [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	478	45
Not Graded [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	280,240	265,093
Residential Owner Occupied [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	143,080	129,585
Residential Owner Occupied [Member] | Pass [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	4,230	4,287
Residential Owner Occupied [Member] | Special Mention [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	131	18
Residential Owner Occupied [Member] | Substandard [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	3,048	3,515
Residential Owner Occupied [Member] | Doubtful [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	365	0
Residential Owner Occupied [Member] | Not Graded [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	135,306	121,765
Residential Non Owner Occupied [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	63,784	66,612
Residential Non Owner Occupied [Member] | Pass [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	51,327	51,660
Residential Non Owner Occupied [Member] | Special Mention [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	2,404	2,894
Residential Non Owner Occupied [Member] | Substandard [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	4,872	5,699
Residential Non Owner Occupied [Member] | Doubtful [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	7	0
Residential Non Owner Occupied [Member] | Not Graded [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	5,174	6,359
One To Four Family Residential Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	206,864	196,197
One To Four Family Residential Real Estate [Member] | Pass [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	55,557	55,947
One To Four Family Residential Real Estate [Member] | Special Mention [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	2,535	2,912
One To Four Family Residential Real Estate [Member] | Substandard [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	7,920	9,214
One To Four Family Residential Real Estate [Member] | Doubtful [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	372	0
One To Four Family Residential Real Estate [Member] | Not Graded [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	140,480	128,124
Multi Family Residential Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	156,660	149,134
Multi Family Residential Real Estate [Member] | Pass [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	152,290	145,407
Multi Family Residential Real Estate [Member] | Special Mention [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	220	875
Multi Family Residential Real Estate [Member] | Substandard [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	3,236	1,888
Multi Family Residential Real Estate [Member] | Doubtful [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	0	0
Multi Family Residential Real Estate [Member] | Not Graded [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	914	964
Commercial Real Estate Owner Occupied [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	302,982	315,753
Commercial Real Estate Owner Occupied [Member] | Pass [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	273,406	291,770
Commercial Real Estate Owner Occupied [Member] | Special Mention [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	18,448	10,584
Commercial Real Estate Owner Occupied [Member] | Substandard [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	9,953	11,665
Commercial Real Estate Owner Occupied [Member] | Doubtful [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	0	0
Commercial Real Estate Owner Occupied [Member] | Not Graded [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	1,175	1,734
Commercial Real Estate Non Owner Occupied [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	245,184	228,320
Commercial Real Estate Non Owner Occupied [Member] | Pass [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	224,073	200,790
Commercial Real Estate Non Owner Occupied [Member] | Special Mention [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	7,898	10,254
Commercial Real Estate Non Owner Occupied [Member] | Substandard [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	13,186	17,185
Commercial Real Estate Non Owner Occupied [Member] | Doubtful [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	0	0
Commercial Real Estate Non Owner Occupied [Member] | Not Graded [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	27	91
Agriculture Land [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	93,543	82,047
Agriculture Land [Member] | Pass [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	90,875	80,418
Agriculture Land [Member] | Special Mention [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	1,849	578
Agriculture Land [Member] | Substandard [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	819	1,051
Agriculture Land [Member] | Doubtful [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	0	0
Agriculture Land [Member] | Not Graded [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	0	0
Commercial Real Estate Other Receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	44,248	46,585
Commercial Real Estate Other Receivable [Member] | Pass [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	40,147	40,676
Commercial Real Estate Other Receivable [Member] | Special Mention [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	63	2,074
Commercial Real Estate Other Receivable [Member] | Substandard [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	3,466	3,104
Commercial Real Estate Other Receivable [Member] | Doubtful [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	0	0
Commercial Real Estate Other Receivable [Member] | Not Graded [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	572	731
Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	685,957	672,705
Commercial Real Estate [Member] | Pass [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	628,501	613,654
Commercial Real Estate [Member] | Special Mention [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	28,258	23,490
Commercial Real Estate [Member] | Substandard [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	27,424	33,005
Commercial Real Estate [Member] | Doubtful [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	0	0
Commercial Real Estate [Member] | Not Graded [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	1,774	2,556
Construction Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	73,722	53,730
Construction Loans [Member] | Pass [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	62,355	43,465
Construction Loans [Member] | Special Mention [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	0	0
Construction Loans [Member] | Substandard [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	150	263
Construction Loans [Member] | Doubtful [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	0	0
Construction Loans [Member] | Not Graded [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	11,217	10,002
Commercial Working Capital [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	135,960	155,792
Commercial Working Capital [Member] | Pass [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	128,229	148,703
Commercial Working Capital [Member] | Special Mention [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	6,287	3,429
Commercial Working Capital [Member] | Substandard [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	1,444	3,660
Commercial Working Capital [Member] | Doubtful [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	0	0
Commercial Working Capital [Member] | Not Graded [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	0	0
Commercial Loans Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	265,071	233,683
Commercial Loans Other [Member] | Pass [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	253,576	219,790
Commercial Loans Other [Member] | Special Mention [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	6,504	6,994
Commercial Loans Other [Member] | Substandard [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	4,991	6,899
Commercial Loans Other [Member] | Doubtful [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	0	0
Commercial Loans Other [Member] | Not Graded [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	0	0
Commercial Loan [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	401,031	389,475
Commercial Loan [Member] | Pass [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	381,805	368,493
Commercial Loan [Member] | Special Mention [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	12,791	10,423
Commercial Loan [Member] | Substandard [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	6,435	10,559
Commercial Loan [Member] | Doubtful [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	0	0
Commercial Loan [Member] | Not Graded [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	0	0
Home Equity and Home Improvement [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	112,282	107,387
Home Equity and Home Improvement [Member] | Pass [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	0	0
Home Equity and Home Improvement [Member] | Special Mention [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	0	0
Home Equity and Home Improvement [Member] | Substandard [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	1,647	755
Home Equity and Home Improvement [Member] | Doubtful [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	106	45
Home Equity and Home Improvement [Member] | Not Graded [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	110,529	106,587
Consumer Loan [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	15,451	16,891
Consumer Loan [Member] | Pass [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	0	0
Consumer Loan [Member] | Special Mention [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	0	0
Consumer Loan [Member] | Substandard [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	125	31
Consumer Loan [Member] | Doubtful [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	0	0
Consumer Loan [Member] | Not Graded [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	$ 15,326	$ 16,860